Wow a neither-English-nor-Chinese comment.
It's indeed one of the best anime I watched so far. Watching the students while remembering my own awesome school days back then, it really makes me cry so bad that time, especially during the second Season of Assassination Classroom. I purely missed my old school.
Oh before I forget, I hope this is correct (though it's a verified translation in Google Translate but I'm still worried about it),